Which of the following polynomials is prime and cannot be factored?

a x(2) +9x
b x(2) +9
c x(2) -9
d 2x(2) +7x-9

The polynomial i.e. prime and cannot be factored is .

The following polynomials could be factored:

So, can't be factored as in this there is no common thing.

Therefore we can conclude that the polynomial i.e. prime and cannot be factored is .

Thus all the other options are ignored.

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B. x² +9

Step-by-step explanation:

Only B cannot be factored... the rest can be factored as follows

A. x² +9x  = x (x+9)

C x² - 9  = x²-3² = (x+3)(x-3)

D 2x² +7x-9 = (2x+9)(x-1)

23

step-by-step explanation:

c is the correct answer

step-by-step explanation: